|Type||Unknown Tier Undead|
|Light Novel||Overlord Volume 2|
|Manga||Overlord Chapter 7|
|Anime||Overlord Episode 8|
Necrosome Giant is over 4m tall and made out of countless corpses.
It uses its massive size to attack its targets.
- A Necrosome Giant was among the many undead that assaulted the gate of E-Rantel during the Cemetery Incident. It was defeated by Momon with a single throw of one of his greatswords into its head.